Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARCUS YOON
NPI 1699672873
Registered Nurse - Case Management in Cypress, CA

Q: What is Marcus Yoon's NPI number?

The NPI number for Marcus Yoon is 1699672873. It was assigned to this individual provider in the NPPES registry on October 21, 2026.

Q: What is Marcus Yoon's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Case Management, with taxonomy code 163WC0400X.

Q: When was this NPI record last updated?

The NPPES record for Marcus Yoon was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 21, 2026

5785 CORPORATE AVE, CYPRESS, CA 90630(714) 947-8624 Get Directions Write a Review

NPPES record added: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Marcus Yoon NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARCUS YOON (NPI 1699672873) is an individual case management provider in Cypress, California, licensed in California (849250) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1699672873

Entity TypeIndividualMale

Primary Taxonomy163WC0400X

Provider Legal NameMARCUS YOON

Location Address5785 CORPORATE AVECypress, CA 90630-4726

Mailing Address3156 Julian AveLong Beach, CA 90808-4435 · (714) 947-8624

Phone(714) 947-8624

Sole ProprietorYes

Enumeration DateOctober 21, 2026

NPPES CertifiedOctober 21, 2026

✔ NPI 1699672873 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered Nurse · Case ManagementNursing Service Providers

Taxonomy Code163WC0400X

License✔ Licensed in CA · 849250

5785 CORPORATE AVE, Cypress, CA 90630

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DALE ANN SCHWAB PHD

Pathology (Clinical Laboratory Director, Non-physician)

5785 CORPORATE AVE
CYPRESS, CA 90630

Orange County (714) 822-2325

PARAMOUNT IPA INC.

Health Maintenance Organization

5785 CORPORATE AVE
CYPRESS, CA 90630

Orange County (714) 947-8600

HEALTHSMART MANAGEMENT SERVICES ORGANIZATION, INC.

Health Maintenance Organization

5785 CORPORATE AVE
CYPRESS, CA 90630

Orange County (714) 947-8600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marcus Yoon's NPI number?

The NPI number for Marcus Yoon is 1699672873. It was assigned to this individual provider in the NPPES registry on October 21, 2026.

Where is Marcus Yoon located?

Marcus Yoon practices at 5785 Corporate Ave, Cypress, CA 90630. The listed phone number is (714) 947-8624.

What is Marcus Yoon's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Case Management, with taxonomy code 163WC0400X.

When was this NPI record last updated?

The NPPES record for Marcus Yoon was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.